<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <h1>我的 Web 页面</h1>
  <p id="demo">一个段落。</p>
  <button type="button" onclick="myFunction()">点击我</button>
  <script src="myScript.js"></script>
</body>
</html>